.a_1_0_1_1_0_menu_bar{
    
    display: flex;
    align-items: center;
    background-color: #212121;
    padding: 0 10px;height: 35px;
    
    box-sizing: border-box;
    font-size: 13px;
    
    border-bottom: 1px solid #2b2b2b;
    border-right: 1px solid #2b2b2b;
}
.a_1_0_1_1_0_activity_bar {
    display: flex;
    background-color: #333333;
    position: fixed;
    border-bottom: 1px solid #2b2b2b;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
        }
        .a_1_0_1_1_0_activity_item {
            display: flex;
            align-items: center;
            padding: 5px 7px;
            color: rgba(231, 231, 231,0.6);height: 100%;
    
            box-sizing: border-box;
            border-bottom: 1px solid transparent;
            cursor: pointer;
            position: relative;
        }
        .a_1_0_1_1_0_activity_item:hover {color: rgba(231, 231, 231, 1);
        }
        .a_1_0_1_1_0_activity_item.a_1_0_1_1_0_active {
    color: rgb(231, 231, 231);
    border-bottom: 1px solid #e7e7e7;
        }
        
.a_1_0_1_1_0_sub_menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #212121;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    min-width: 150px;
    padding:5px;
    border: 1px solid #2b2b2b;
    border-radius: 8px;
}
.a_1_0_1_1_0_menu_item:hover .a_1_0_1_1_0_sub_menu {
    display: block;
}
.a_1_0_1_1_0_menu_item {
    padding: 5px 10px;
color:#cccccc;
    white-space: nowrap;border-radius: 4px;
}